Abstract: A dental fixator device includes a vertical staff, an upper horizontal arm, a lower horizontal arm, and a pair of clamps on each of the two arms, one of the clamps of each arm being adjacent the rear thereof and slidable on a jig towards the front clamp of the arm, each pair of clamps thereby holding releasably a dental model or cast against the associated arm. The clamps can be pivoted in a horizontal plane and include barrel-shaped serrated gripping surfaces on opposite ends thereof. Each arm has a front flange through which a longitudinal screw runs to the jig for moving the jig along the arm. The upper arm is connected to a cylinder, in turn connected to the staff so that the arm can be rotated around its longitudinal axis. The front end of the cylinder may be pivotably connected to the upper arm and locked in position at a selected angle to the cylinder to accommodate work on the dental models or casts borne on the arms.